package org.daochong.web.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.daochong.web.WebUtils;

public class InsideProectedFilter implements Filter {

	public void init(FilterConfig filterConfig) throws ServletException {

	}

	public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain)
			throws IOException, ServletException {
		HttpServletRequest request = (HttpServletRequest) req;
		String ip = WebUtils.getRealIp(request);
		if (!WebUtils.isInside(ip)) {
			((HttpServletResponse) resp).setStatus(405);
		} else {
			chain.doFilter(req, resp);
		}
	}

	public void destroy() {

	}

}
